Revert "Power connect/disconnect notification"

This reverts commit b59fcae0334b97c2dfd433fe3ac476d736cde0c8.
Revert "Display options: allow configuration of wake on plug behavior"

This reverts commit dafdd6ff0ae71238704a97b71bd32e237807dfcb.
Revert "Option to use volume keys to control media volume anytime"

This reverts commit f786e39f08167e7d11439c22586a330bc507d88c.
Revert "Audio: make safe headset volume user configurable"

This reverts commit 75e69eff989dfe27cf4bc32b2f912b3bd309b41e.